This past week 15 new mashups were added to our mashup directory and 18 different APIs were used to build them. Some of the newer or less frequently seen APIs include billomat, Infosniper.net and mite. The most often used APIs this week are Amazon EC2, Google Maps and GovTrack.us. And the most commonly used types of APIs were Social (3 APIs, 4 mashups), Mapping (3 APIs, 8 mashups) and Search (2 APIs, 2 mashups). The list below shows which APIs were used by which mashups: